The report by three senior party figures has found relationships between parliamentary members, the party leadership and unions became dysfunctional and communication broke down between the parliamentary and administrative wings.

Labor's power-sharing deal with the Greens turned traditional voters away, but the report also found the 11th hour decision to cut ties with the Greens was seen as cynical.

Opposition Leader Bryan Green does not agree with all of the findings which he says are not necessarily the full story.

"In the first place, you don't necessarily agree with everything that's written in the report," he said.

"It's a good report and I guess the people facing up the circumstances didn't live through all of the issues that we were confronted with at the time."

The report also says the party suffered from governing during a financial crisis, but suggests Labor could still win majority government in 2018.

Forestry focus as Parliament resumes

Tasmanian forests look set to dominate State Parliament again this week.

The Government's bill to repeal the forest peace deal will be debated on Wednesday.

Labor is not saying whether it will support the Rebuilding the Forest Industry Bill.

The legislation would allow 400,000 hectares of forests set for protection to be logged in six years.

The Government has the numbers for it to pass the Lower House without Opposition support.

Free trade is the oldest argument in federal politics and the issue that literally defined the federation era but opposition exists to the TPP, courtesy of the Investor-State Dispute Resolutions clause.